High Voltage Engineering
2010-2011 - ELE3311 - 5 ECTS

Expected learning outcomes

The students should acquire theoretical knowledge and practical skills for calculating electrical stress on high voltage electrical insulation material with simple electrode configurations.

Knowledge:

Know the structure of the transmission and distribution network in Norway and Sweden.
Knowledge about gas, liquid and solid insulation material used for electrical insulation in high voltage lines, cables, transformers and other equipment.
Knowledge about simplified models for calculating overvoltage due to switching and lightning.

Skills

Understand and behave due to a safety instruction.
Do practical impuls-, dc- and ac- high voltages test of objects in laboratory.
Skills to make technical reports so they are possible to redo.

General competence/universal knowledge

Discuss environmental and social issues due to electrical production, transmission and distribution and use/consumption.

Topic(s)

Electrostatic fields calculations. (Plane, sphere and cylindrical configurations.)
Electrical breakdown in gases (Townsend criteria) and in electronegativ gases.
Paschen’s law
Insulating liquids (testing, aging and oxidation) and factors influencing the dielectric strength.
Switchgear, overhead lines, glass and porcelain isolators, High voltage fuses, High voltage cables.
Lightning overvoltage calculation
Switching overvoltage calculation
High voltage test technique

Teaching Methods

Lectures
Laboratory work
E-learning
Net Support Learning
Mandatory assignments
Exercises

Form(s) of Assessment

Written exam, 3 hours

Grading Scale

Alphabetical Scale, A(best) – F (fail)